Shallow Shear-Wave (SV) Reflection Surveying with Distributed Acoustic Sensing in Zuidbroek, the Netherlands
Guy Drijkoningen (TU Delft - Applied Geophysics and Petrophysics)
D. Zhang (TU Delft - Applied Geophysics and Petrophysics)
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Abstract
A field experiment was conducted in Zuidbroek, the Netherlands to compare the performance of a DAS and horizontal-geophone system for shear-wave (SV) reflection surveying. The data were subjected to processing for reflection imaging, including conversion of the geophone data to strain-rate data, to enable such a comparison on migrated-section level. Our findings indicate that DAS straight-fibre data shows a lower-frequency information content, but achieves better reflector continuity than the geophone data due to the more continuous and denser sampling with the DAS system.